From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Ard Biesheuvel <ardb@kernel.org>,
Darren Hart <dvhart@infradead.org>,
Andy Shevchenko <andy@infradead.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
xen-devel@lists.xenproject.org
Subject: [PATCH v2 0/3] x86/realmode: use a dummy trampoline for Xen PV guests
Date: Tue, 22 Nov 2022 17:38:07 +0100 [thread overview]
Message-ID: <20221122163810.29752-1-jgross@suse.com> (raw)
A Xen PV guests can't run in realmode, so the realmode trampoline can
omitted.
Changes in V2:
- complete new approach
Juergen Gross (3):
x86/realmode: test real_mode_header outside of real_mode_size_needed()
x86/realmode: add trampoline reference structure
x86/xen: add a dummy trampoline for Xen PV guests
arch/x86/include/asm/realmode.h | 15 +++++++++++----
arch/x86/platform/efi/quirks.c | 3 ++-
arch/x86/realmode/init.c | 25 ++++++++++++++++++++-----
arch/x86/xen/enlighten_pv.c | 17 +++++++++++++++++
4 files changed, 50 insertions(+), 10 deletions(-)
--
2.35.3
next reply other threads:[~2022-11-22 16:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-22 16:38 Juergen Gross [this message]
2022-11-22 16:38 ` [PATCH v2 1/3] x86/realmode: test real_mode_header outside of real_mode_size_needed() Juergen Gross
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